Fast key-value storage built for global applications

Azion KV Store is a serverless key-value database with global read replicas. Key features include: low-latency reads across Azion's distributed network, automatic replication, native Functions integration, TTL support, and flexible data types (String, JSON, Buffer, Stream). The API is compatible with Cloudflare Workers KV for easy migration. Ideal for sessions, feature flags, rate limiting, and configuration management.

KV Store supports 4 data types natively: String, JSON objects, binary buffers, and streams. Unlike string-only key-value stores, you can store complex objects and binary data without serialization overhead. The schemaless design allows flexible data modeling without migrations.

KV Store uses a primary instance for writes and global read replicas. Data synchronizes with eventual consistency, providing high availability and fast reads close to users. This architecture is ideal for reference data, sessions, and configuration that doesn't require immediate global consistency.

Yes. KV Store supports native TTL (time-to-live) to automatically expire ephemeral keys. This is useful for session tokens, temporary feature flags, cache entries, and time-limited configurations.

Functions can access KV Store through a native JavaScript API in the runtime. This enables direct integration without extra network hops—your code reads and writes data within the same execution environment.

Common use cases include: session management (store user sessions and authentication tokens with TTL), feature flags (manage rollouts and A/B tests globally), rate limiting (implement sliding window limits per IP or user), configuration (store app config with low-latency reads), counters (track pageviews and API usage), and security lists (block bad actors with fast lookups).

KV Store supports keys up to 512 bytes and values up to 25 MB. You can attach metadata to each key-value pair for additional context. These limits accommodate most session, configuration, and feature flag use cases.

Yes. KV Store provides a compatible API with Cloudflare Workers KV, making migration straightforward. Code written for Cloudflare KV requires minimal changes to run on Azion. This reduces lock-in and lets teams use familiar patterns.

Yes. You get $300 in credits valid for 365 days to test KV Store and other Azion products. Start building immediately without infrastructure provisioning—fully serverless with scale-to-zero when idle.

Cloudflare Workers KV charges $5 per 1M writes—10x their read pricing ($0.50/1M reads). For write-heavy workloads like session management, this adds up quickly. Azion uses consumption-based pricing without the write premium. Compare total costs based on your read/write ratio.